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Fig. 1. Effect of body mass on (A) oxygen consumption rates (µmol O2
g-1 h-1; 5°C) and (B) citrate synthase activity
(units g-1; 20°C) of cephalopod molluscs. The relationships
drawn are for families Loliginidae (filled blue triangles), Ommastrephidae
(open blue triangles), Gonatidae (blue crosses), Octopodidae (open brown
inverted triangles), Histioteuthidae (brown circles), Cranchidae (open brown
circles), Bolitaenidae (black squares), Vampyroteuthidae (white squares). The
scaling coefficients for oxygen consumption rates of Loliginid squids are
significantly different from benthic Octodidae (ANCOVA, P<0.05),
and others, and the s.e.m. does not include quarter power (-0.25). Regression
equations are presented in Table
1 while sources of data can be found in supplementary material
Tables S1-S4.